iwlwifi: fix spinlock used before initialized

The patch fixes spinlock priv->lock (apm_ops.init) is used before it has
been initialized.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index aab0ee6..7759e63 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -174,9 +174,8 @@
 	int ret;
 
 	/* nic_init */
-	priv->cfg->ops->lib->apm_ops.init(priv);
-
 	spin_lock_irqsave(&priv->lock, flags);
+	priv->cfg->ops->lib->apm_ops.init(priv);
 	iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
 	spin_unlock_irqrestore(&priv->lock, flags);